I would think that they dont look at the legal age that much.
How ever I wouldnt say that they would be going for actual children either.
But teenagers who are mentally developed enough is a definitely maybe for me. We have to note that there is allready many teen parents, some as young as 15. and I have heard about 25 year old grandad and 26 year old grandmother.
Allso we have to remember that legal age of concent varies between nations.